I only used the 1.0 bios for a few days, but from what I can tell the interface and options are pretty much the same. Probably it's more of a stability difference. I was able to get 2933mhz on my memory, even with 1.0 bios. I remember that using the default voltage I could not got pass 3650mzh on all cores on my 1700, with the 1.0 bios. After 1.15 beta I could do 3700mhz on all cores.